491487682 has 8 divisors (see below), whose sum is σ = 842550336. Its totient is φ = 210637572.

The previous prime is 491487673. The next prime is 491487719. The reversal of 491487682 is 286784194.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17553118 + ... + 17553145.

It is an arithmetic number, because the mean of its divisors is an integer number (105318792).

Almost surely, 2^491487682 is an apocalyptic number.

491487682 is a deficient number, since it is larger than the sum of its proper divisors (351062654).

491487682 is a wasteful number, since it uses less digits than its factorization.

491487682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35106272.

The product of its digits is 774144, while the sum is 49.

The square root of 491487682 is about 22169.5214652910. The cubic root of 491487682 is about 789.1705667396.

The spelling of 491487682 in words is "four hundred ninety-one million, four hundred eighty-seven thousand, six hundred eighty-two".